The nor



(No Model.)

'H. WYMAN.

CLUTCH OPERATING MECHANISM FOR LOOMS. I No. 565,656. Patented Aug. 11,1896.

"u mum UNITED STATES PATENT @FFICE.

HORACE VYMAN, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO THE 7 CROMPTON LOOM WORKS, OF, SAME PLACE.

CLUTCH-OPERATING MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 565,656, dated August 11, 1896. Application filed December 18, 1895. Serial No. 572,513. (No model.)

To all whom it may concern:

Be it known that I, HORACE WYMAN, of Worcester, county of Worcester, and State of Massachusetts, have invented an Improvement in Clutch Operating Mechanism for Looms, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object the production of a novel clutch operating or driving mechanism for looms, the invention residing in various features of construction to be hereinafter described, and pointed out in the claims.

In the drawings, Figure 1, in end elevation, shows a sufficient portion of a loom equipped with my invention to enable the latter to be understood; Fig. 2, a top or plan view of the parts shown in Fig. 1, together with a portion of the lay, showing the shuttle and pickerstick. Fig. 3, on a reduced scale, is a partial front elevation of the parts shown in Fig. 1; Fig. 4, an enlarged vertical section of the clutch mechanism, Figs. 1 and 2; Fig. 5, a perspective detail showing the two cooperating expanding-yokes, to be described.

Referring to the drawings, in the embodiment of my invention there shown the loomframe A, the breast-beam r, the crank-shaft B, and the lay B are and may be of usual or desired construction, such, for instance, as shown and described in United States Patent No. 197,754, dated December 4, 1877.

The shuttle S and picker-stick p are shown only partially in Fig. 2, and may be common to looms as now usually constructed.

Upon the crank-shaft B is made fast a brake-wheel b and next it a toothed gear I), both common to United States Patent No. 227,667, said gear having made as a part of it the hand-wheel 19 having at one side a ring-like face I), of leather or other suitable friction material, adjacent which is arranged the rim edge of the belt-pulley b loose on the said shaft. Outside the hub of the belt-pulley b is a grooved collar 0, fast on the end of said shaft. The collar 0 is grooved to receive the inturned flange c of the semicylindrical hood-like clutch member 0 provided with oppositely-arranged pivots c ,to which is jointed the forked end of the lever cl, supported near the breast-beam in a suitable forked support d and itself forked at its. free end to straddle the shipper-lever 01 arranged in suitable manner at the end of the loom and shown as of spring material attached to the loon1-fra1ne at its lower end and by its own resiliency tending to normally remain in its outermost positions, Figs. 2 and 3, the said shipper working in the usual slot 01 in the catch-plate d, the latter being provided with a holding-notch d (See Fig. 2.) The forked end of the lever d, close to but inside the pivots c, is perforated to receive the oppositely arranged pivot projections e on the yoke-like member 6, Fig. 5, arranged to travel in the groove of the extended hub c of the pulley b the said yoke-like member 6 and the member 0 (both shown in Fig. 5) constituting what I denominate in the claims as clutch-actuating members.

hen the loom is at rest, with the parts in the positions Figs. 2, 3, and 4, the pulley 1) travels loosely on the shaft B.

To start the loom, the operator throws the shipper-handle to the left, Fig. 2, into the holding-notch d such movement of said shipper acting to turn the lever din the direction of the arrow, Fig. 2, about its fulcrum-pivots c on the stationary hood-like member 0 cansing the pins 6 in the member 6 to slide the said member and the pulley b to the left, Figs. 2 and 4, until the edge of the pulley-rim meets the friction-face b of the hand-wheel, frictional contact of the two imparting to the hand-wheel and the crank-shaft the rotary motion of the pulley and starting the loom.

To release the clutch and stop the loom, the operator throws ofi the shipper, as usual, the resiliency of the latter throwing it to its extreme position at the right, Fig. 2, and returning the lever cl to its original position, withdrawing the driving-pulley from frictional contact with the face of the handwheel.

It will be noticed that the leverd is, in my improved construction, given an angular or reverse bend at its middle to clear the vibratory movements of the usual picker-stick 19, said lever, Fig. 2, being bent to the left at 3 and again back to its normal direction at 4.

The clutch-controlling lever d is supported at one end by the clutch parts and at its opposite end by the support cl and is loosely connected with the shipper-lever.

My invention is not limited to the particular construction of parts herein shown and described, for it is evident the same may be varied without departing from the spirit and I scope of the invention.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. In a loom,the combination of the drivingshaft, the fixed and loose clutch-driving members thereupon, fixed and movable clutchactuating members loosely mounted on the said shaft to permit the latter to rotate Within or relatively to said members, the clutch-controlling lever connected at one end with both of said clutch-actuating members and supported at its said end by said members, vibration of the said lever spreading said members to bring the clutch-driving members into operative engagement with each other, a shipper arranged at one side of said drivingshaft and connected with that end of said lever opposite said actuating members,whereby vibration of said shipper causes vibration of said lever and operation of the clutch, and a support for and to retain said controlling-lever in a laterally-extended position connecting said clutch-actuating members and shipper and to prevent said controlling-lever gravitating into a vertical position, substantially as described.

2. The combination with the driving-shaft, and the fast and loose driving members mounted thereon, the latter having a connected circumferentially-grooved part, of a grooved collar arranged on said shaft, semicylindrical clutchactuating members arranged facing each other and applied from opposite sides of said shaft and traveling respectively in the grooves of said connected part and said collar, and means to separate said clutch-.actuatin g members axially of said shaft, to carry said fast and loose driving members into driving engagement one with another, substantially as described.

3. The combination with the driving-shaft, and the fixed and loose driving members thereon, of an extended hub provided on the loose driving member, a collar fixed on the shaft, said collar and hub being peripherally grooved, a semicylindrical, hood-like member, having an inturned flange seated loosely in the groove of the collar, a yoke-like member seated loosely in the groove of the hub normally opposite the projecting end of the hood-like member, and a lever pivotally connected to the latter and to the yoke-like member, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HORACE WYMAN. Witnesses:

FREDERICK L. EMERY, GEO. W. GREGORY. 

